Respirator filter cartridge



FIG. 1 is a perspective view showing an embodiment of the new design for a respirator filter cartridge;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a right side view thereof;

FIG. 8 is a perspective view showing another embodiment of the new design for a respirator filter cartridge;

FIG. 9 is a front view thereof;

FIG. 10 is a rear view thereof;

FIG. 11 is a bottom view thereof;

FIG. 12 is a top view thereof;

FIG. 13 is a left side view thereof; and,

FIG. 14 is a right side view thereof.

In the drawings, the broken lines are for the purpose of illustrating portions of the respirator filter cartridge that forms no part of the claimed design. 

CLAIM The ornamental design for a respirator filter cartridge, as shown and described. 